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Rotary drilling drill construction case | Sichuan Ya'an new Sichuan-Tibet railway project

  • 2024.10.25

Construction time

In 2022

Construction site

Ya'an, Sichuan

The type of project

Railway/tunnel construction

Device type

Piling machinery

Project Name:Sichuan-Tibet Railway Ya'an to Nyingchi section
Contractor:China Railway 11th Bureau
Pile foundation parameters:The pile diameter is 1.8m, and the pile length is 30m
Geology:0~7m pebble layer (main particle size 100mm-200mm)
7m-30m sandy mudstone
Construction Efficiency:4.09m/h (mudstone) rock hardness